Ios 页面视图控制器内容不显示其小部件

页面视图控制器未显示其内容视图控制器， 请任何人帮助找出错误并帮助解决方案 谢谢

}

} 页面视图控制器未显示其内容视图控制器， 请任何人帮助找出错误并帮助解决方案

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谢谢

您需要添加页面视图控制器的所有必需功能。 尝试添加以下代码：

func pageViewController(pageViewController: UIPageViewController, viewControllerBeforeViewController viewController: UIViewController) -> UIViewController?
{
    var index = (viewController as! ContentViewController).pageIndex
    if (index == 0) || (index == NSNotFound) {
        return nil
    }
    index--
    return viewControllerAtIndex(index)
}

func pageViewController(pageViewController: UIPageViewController, viewControllerAfterViewController viewController: UIViewController) -> UIViewController?
{
    var index = (viewController as! ContentViewController).pageIndex
    if index == NSNotFound {
        return nil
    }
    index++
    if (index == self.pageTitles.count) {
        return nil
    }
    return viewControllerAtIndex(index)
}

func presentationCountForPageViewController(pageViewController: UIPageViewController) -> Int
{
    return self.pageTitles.count
}

func presentationIndexForPageViewController(pageViewController: UIPageViewController) -> Int
{
    return 0
}

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我的bitbucket用户名：Arunanah如何使用github？

func pageViewController(pageViewController: UIPageViewController, viewControllerBeforeViewController viewController: UIViewController) -> UIViewController?
{
    var index = (viewController as! ContentViewController).pageIndex
    if (index == 0) || (index == NSNotFound) {
        return nil
    }
    index--
    return viewControllerAtIndex(index)
}

func pageViewController(pageViewController: UIPageViewController, viewControllerAfterViewController viewController: UIViewController) -> UIViewController?
{
    var index = (viewController as! ContentViewController).pageIndex
    if index == NSNotFound {
        return nil
    }
    index++
    if (index == self.pageTitles.count) {
        return nil
    }
    return viewControllerAtIndex(index)
}

func presentationCountForPageViewController(pageViewController: UIPageViewController) -> Int
{
    return self.pageTitles.count
}

func presentationIndexForPageViewController(pageViewController: UIPageViewController) -> Int
{
    return 0
}